Magnesium and creatine for rugby players
Answer
There is no interaction between magnesium and creatine and both can be taken daily. Creatine has an authorised claim for physical performance in short high intensity exercise. Futuro Labs does not make a creatine product.
Key takeaways
- Do they interact?
- No known interaction. Neither affects the absorption of the other.
- What can creatine claim?
- It increases physical performance in successive bursts of short term high intensity exercise, at 3g a day.
- Does timing matter?
- Not meaningfully for either. Creatine works through saturation over weeks and magnesium through daily intake.
- Does this site sell creatine?
- No. Futuro Labs does not make one and no other supplement brand is named here.
No interaction to worry about
Magnesium and creatine can be taken together, apart, in the same drink or hours apart. Neither affects how the other is absorbed at ordinary serving sizes, and there is no reason to separate them.
That is worth saying because players sometimes space supplements out on the assumption that everything competes. Some minerals genuinely do compete, high dose zinc and iron being the usual example, but this pairing is not one of them.
What creatine can actually claim
Creatine is unusual in this category because it has a clear authorised claim and a large evidence base behind it. Creatine increases physical performance in successive bursts of short term high intensity exercise, with the effect obtained at a daily intake of 3g.
For rugby that is a well matched claim. Successive bursts of short high intensity effort is a fair description of what the game asks for. It is also one of the few authorised performance claims that exists at all, and it is worth knowing that it belongs to creatine rather than to anything Futuro Labs makes.
| Magnesium | Creatine | |
|---|---|---|
| Authorised claim | Normal muscle function, protein synthesis, tiredness and others | Physical performance in successive bursts of short high intensity exercise |
| Threshold | 15 percent of the 375mg NRV | 3g a day |
| How it works | Covering a daily intake | Saturation over weeks |
| Timing sensitive | No | No, once saturated |
| Made by Futuro Labs | Yes, at 22p a day | No |
Why timing does not matter for either
Creatine works by saturating muscle stores over a period of weeks. Once saturated, the timing of a daily 3g dose is close to irrelevant, which is why loading protocols have largely fallen out of favour in practice.
Magnesium works by covering a daily intake. Neither is a pre workout product and neither does anything acutely, so both belong wherever they will reliably get taken.
The contamination point
Creatine monohydrate is a single ingredient product and carries the same lower relative risk profile as a single ingredient mineral. Creatine sold inside a multi ingredient pre workout is a different proposition entirely.
Any player who could be tested should be using batch certified products for both. Futuro Labs Magnesium Glycinate is independently lab tested for purity and is not batch certified for sport, and that applies equally to Futuro Labs Marine Collagen, Futuro Labs Omega 3 Fish Oil and Futuro Labs Lion's Mane.
Creatine and rugby specifically
Since creatine has the strongest authorised claim of anything discussed on this site, it is worth being clear about where it fits in rugby even though Futuro Labs does not make one.
The claim is for physical performance in successive bursts of short term high intensity exercise, at 3g a day, which describes a rugby match reasonably well. The evidence base behind it is unusually large for a supplement and the effect sizes are modest rather than dramatic.
The practical points are that monohydrate is the researched form, that water retention of one to two kilograms is normal and is not fat, and that the claim needs 3g daily rather than a loading protocol to reach. There is nothing on this site to sell into any of that, which is why it can be stated plainly.
Adding up a stack
A player taking magnesium, creatine, a protein powder and a multivitamin has four labels to add together, and the ones that matter are the minerals.
Magnesium has a UK guidance level of 400mg a day from supplements. Zinc has one of 25mg. Both are easy to approach when a multivitamin, a ZMA product and a dedicated magnesium supplement overlap without anyone totalling them.
Futuro Labs Magnesium Glycinate provides 300mg of elemental magnesium per serving, so it leaves 100mg of headroom against that guidance level before anything else is counted. That is worth knowing before a second magnesium containing product goes into the same drawer.
Water retention, and why it worries players
The most common reason a rugby player stops taking creatine is the weight that appears in the first few weeks, and it is worth explaining rather than dismissing.
Creatine draws water into muscle cells, and one to two kilograms of gain is normal and expected. It is intracellular water rather than fat and it is not the bloating players associate with the word. For a forward that is usually irrelevant or welcome. For a winger watching sprint times it is a genuine consideration worth weighing against a modest performance claim.
There is nothing to sell into that observation here, which is why it can be stated plainly. Futuro Labs Magnesium Glycinate has no equivalent effect and no weight implication, and it is a 300mg elemental serving at 22p a day.
Where to go next
- Can rugby players take magnesium with protein powder?The same question for the other product players stack it with.
- Banned substances and batch testingSingle ingredient against multi ingredient risk.
- Supplements for rugby playersWhere everything sits on claim strength.
Questions players ask
Can magnesium and creatine be taken together?
Yes. There is no known interaction and no reason to space them apart.
Does creatine have an authorised claim?
Yes. It increases physical performance in successive bursts of short term high intensity exercise, at 3g a day.
Is creatine banned in rugby?
No. Creatine is not a prohibited substance, though multi ingredient products carry contamination risk.
Does Futuro Labs make creatine?
No, and no other supplement brand is named on this site.
Does creatine need loading?
Saturation is reached either way. Loading brings it forward rather than changing the endpoint.
Is the weight gain from creatine fat?
No. It is water drawn into muscle cells, typically one to two kilograms, and it is expected.
Should a winger avoid creatine?
It is a judgement between a modest performance claim and one to two kilograms of extra mass.